A compound of the formula (I), and lubricant, and magnetic disk each using the sameA-(CH2—Rf—CH2O—B—O)n—CH2—Rf—CH2-A (I)wherein n is an integer of 1 to 4, A is a group of the formula (a) below, and B is a group of the formula (b) below, p being 1 or 2, R being C1-4 fluoroalkyl, Rf is —CF2O(CF2CF2O)x(CF2O)yCF2— or —CF2CF2O(CF2CF2CF2O)zCF2CF2—, x, y and z being each a real number of 0 to 50.
Legal claims defining the scope of protection, as filed with the USPTO.
2. A compound as defined in claim 1 wherein n is 1, and p is 1 or 2.
4. A lubricant as defined in claim 3 wherein n is 1, and p is 1 or 2.
6. A magnetic disk as defined in claim 5 wherein n is 1, and p is 1 or 2.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
May 9, 2008
October 18, 2011
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